Clear loopTops in CFGWalker - #9191
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CFGWalker clears all its local state when visiting a function, but it previously did not clear loopTops. If CFGWalker were to be used in a non-function-parallel pass, this would lead to dangling BasicBlock pointers in loopTops. There does not happen to be such a use of CFGWalker today, but it is still worth fixing.
kripken
approved these changes
Oct 1, 2026
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CFGWalker clears all its local state when visiting a function, but it previously did not clear loopTops. If CFGWalker were to be used in a non-function-parallel pass, this would lead to dangling BasicBlock pointers in loopTops. There does not happen to be such a use of CFGWalker today, but it is still worth fixing.